Nguyen Viet Anh, Nguyen Thuy Anh, Doan Thi Bich Ngoc
Faculty of Dentistry, PHENIKAA University, Hanoi, Vietnam.
Private Practice, Viet Anh Orthodontic Clinic, Hanoi, Vietnam.
Sci Rep. 2025 May 6;15(1):15772. doi: 10.1038/s41598-025-01035-w.
This study aimed to evaluate the effectiveness of anterior unilateral bite turbos (AUBTs) in correcting incisal plane cant and asymmetric overbite in orthodontic patients. A prospective study was conducted on 40 orthodontic patients (4 males, 36 females) undergoing fixed appliance treatment in a private practice setting. Subjects presented with either primary or iatrogenic incisal plane cants and received AUBT placement on the upper canine or lateral incisor of the more pronounced overbite side. Digital photographic analysis was used to measure changes in cant parameters at baseline (T0), pre-AUBT placement (T1), and post-treatment (T2). Statistical analysis was performed using repeated measures ANOVA and Bonferroni post hoc tests. Results indicated that AUBTs significantly reduced incisal plane cant across all groups, with the primary group showing a greater overall improvement compared to the iatrogenic group. The lower incisal plane and gingival margin exhibited more significant cant correction than the upper ones. Patients adapted well to the appliances, with minimal debonding failures and no significant changes in temporomandibular function. This study supports the use of AUBTs as a minimally invasive, cost-effective alternative for incisal plane cant asymmetric overbite correction. Future research should explore long-term stability and comparative effectiveness with other cant correction modalities.
本研究旨在评估前牙单侧咬涡轮（AUBT）对正畸患者切牙平面倾斜和不对称深覆合的矫治效果。对一家私人诊所中40例接受固定矫治器治疗的正畸患者（4例男性，36例女性）进行了一项前瞻性研究。受试者存在原发性或医源性切牙平面倾斜，并在深覆合更明显一侧的上颌尖牙或侧切牙上放置AUBT。采用数码照片分析测量基线（T0）、放置AUBT前（T1）和治疗后（T2）时倾斜参数的变化。使用重复测量方差分析和Bonferroni事后检验进行统计分析。结果表明，AUBT在所有组中均显著降低了切牙平面倾斜，原发性组总体改善程度大于医源性组。下颌切牙平面和牙龈缘的倾斜矫正比上颌更显著。患者对矫治器适应良好，脱粘失败极少，颞下颌功能无显著变化。本研究支持将AUBT作为一种微创、经济有效的替代方法用于矫治切牙平面倾斜和不对称深覆合。未来的研究应探索其长期稳定性以及与其他倾斜矫正方法相比的有效性。
